bcachefs (loop5): flushing journal and stopping allocators complete, journal seq 12
bcachefs (loop5): unshutdown complete, journal seq 13
bcachefs (loop5): done going read-only, filesystem not clean
bcachefs (loop5): shutdown complete
------------[ cut here ]------------
kernel BUG at fs/bcachefs/btree_cache.c:445!
invalid opcode: 0000 [#1] PREEMPT SMP PTI
CPU: 1 PID: 4888 Comm: syz.5.16 Not tainted 6.9.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:bch2_fs_btree_cache_exit+0x308/0x310 fs/bcachefs/btree_cache.c:444
Code: c8 76 23 48 8b 83 d8 19 00 00 4c 01 f0 eb b0 48 83 c4 28 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc 90 0f 0b 90 0f 0b 90 <0f> 0b 66 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc9000307bbb0 EFLAGS: 00010202
RAX: 00000000ff600001 RBX: ffff88810ef80000 RCX: ffff88810ef81c68
RDX: ffff888177967628 RSI: ffff88810ef81c68 RDI: ffff888177960228
RBP: 0000000000000014 R08: 0000000000000001 R09: 0000000000000000
R10: ffffea00040fd200 R11: ffffffff8125acd0 R12: ffff888177961228
R13: ffff888177961628 R14: ffff88810ef81c68 R15: ffff88810ef81c68
FS:  00007f334a5a76c0(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6bdda00010 CR3: 0000000106b70000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __bch2_fs_free fs/bcachefs/super.c:565 [inline]
 bch2_fs_release+0x1d2/0x3c0 fs/bcachefs/super.c:612
 kobject_cleanup lib/kobject.c:689 [inline]
 kobject_release lib/kobject.c:720 [inline]
 kref_put include/linux/kref.h:65 [inline]
 kobject_put+0xac/0x1b0 lib/kobject.c:737
 deactivate_locked_super+0x30/0x90 fs/super.c:472
 bch2_mount+0x49e/0x5f0 fs/bcachefs/fs.c:2004
 legacy_get_tree+0x2d/0x60 fs/fs_context.c:662
 vfs_get_tree+0x2a/0xf0 fs/super.c:1779
 do_new_mount+0x132/0x360 fs/namespace.c:3352
 do_mount fs/namespace.c:3692 [inline]
 __do_sys_mount fs/namespace.c:3898 [inline]
 __se_sys_mount+0x169/0x1c0 fs/namespace.c:3875
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf8/0x220 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f334977ffba
Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f334a5a6e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f334a5a6ef0 RCX: 00007f334977ffba
RDX: 00000000200000c0 RSI: 0000000020000100 RDI: 00007f334a5a6eb0
RBP: 00000000200000c0 R08: 00007f334a5a6ef0 R09: 0000000000800000
R10: 0000000000800000 R11: 0000000000000246 R12: 0000000020000100
R13: 00007f334a5a6eb0 R14: 000000000000597f R15: 0000000020005bc0
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:bch2_fs_btree_cache_exit+0x308/0x310 fs/bcachefs/btree_cache.c:444
Code: c8 76 23 48 8b 83 d8 19 00 00 4c 01 f0 eb b0 48 83 c4 28 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc 90 0f 0b 90 0f 0b 90 <0f> 0b 66 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc9000307bbb0 EFLAGS: 00010202
RAX: 00000000ff600001 RBX: ffff88810ef80000 RCX: ffff88810ef81c68
RDX: ffff888177967628 RSI: ffff88810ef81c68 RDI: ffff888177960228
RBP: 0000000000000014 R08: 0000000000000001 R09: 0000000000000000
R10: ffffea00040fd200 R11: ffffffff8125acd0 R12: ffff888177961228
R13: ffff888177961628 R14: ffff88810ef81c68 R15: ffff88810ef81c68
FS:  00007f334a5a76c0(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6bdda00010 CR3: 0000000106b70000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400